MRI resources
Neurological shunts
Find MRI information for Medtronic neurological shunts.
Medtronic neurosurgery values reflect our mission to restore health and extend life. Providing important information about our products is a key element of these values. This page contains information regarding the use of Medtronic neurosurgery products in a magnetic resonance (MR) environment.
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Strata adjustable valves: MR conditional
Strata™ adjustable valves are considered magnetic resonance conditional in accordance with ASTM F2503. MRI systems of up to 3.0 tesla and a spatial gradient magnetic field of 720 gauss/cm or less, may be used at any time after implantation without damaging the Strata adjustable valve mechanism.
However, exposure to MRI can change the performance level setting of the Strata adjustable valve. The Strata adjustable valve performance level setting should always be checked before and after MRI exposure.
| Product series | Model numbers | Adjustable? | MRI compatibility | Notes |
|---|---|---|---|---|
| Strata I valves* | 42855 46855 42865 46865 |
Yes | MR conditional | No IFU is available due to age of product. Product numbers were found from multiple sources. |
| Strata NSC valves | 42365 92365 42355 92355 |
Yes | MR conditional | |
| Strata II valves | 42866 92866 42856 92856 |
Yes | MR conditional | |
| Strata shunt | 46856 27814 46866 27815 46655 46665 96655 96665 27818 27819 46871 46876 27820 46070 46075 46080 46085 27786 27824 27821 46881 46886 27787 27825 27816 27817 27739 27740 27822 27823 27788 27789 27923 27831 |
Yes | MR conditional | |
| Strata NSC lumboperitoneal shunt system | 44421 44420 44430 44465 |
Yes | MR conditional | |
| Strata burr hole valve | 42836 | Yes | MR conditional | |
| Strata NSC burr hole valve | 42335 46635 |
Yes | MR conditional | |
| Other Strata part numbers | 46837 46636 27829 27888 |
MR conditional |
StrataMR adjustable valves: MR conditional
StrataMR™ adjustable valves are considered magnetic resonance conditional in accordance with ASTM F2503. A patient with this device can be safely scanned in an MR system of 1.5 or 3.0 tesla static magnetic field and a maximum spatial gradient magnetic field of 1900 gauss/cm.
| Product series | Model numbers | Adjustable? | MRI compatibility | Notes |
|---|---|---|---|---|
| StrataMR valves | 42965 42955 |
Yes | MR conditional | |
| StrataMR II valves | 42955MR 42965MR |
Yes | MR conditional | |
| StrataMR II shunts & kits | 46955MR 46956MR 46957MR 46965MR 46966MR 46967MR |
Yes | MR conditional |
STRATA II adjustment kit, StrataVarious system, and StrataMR adjustment tools: MR unsafe
Do NOT take these tools into an MRI facility as as the magnets within the tools may be a potential safety hazard to the patient and/or user. Move out of the vicinity of the MRI suite before verifying a valve setting.
| Product series | Model numbers | Adjustable? | MRI compatibility | Notes |
|---|---|---|---|---|
| Strata, StrataVarius, StrataMR | 45805 45806 45809 45905 45909SMR |
N/A | MR unsafe |
| Product series | Model numbers | Adjustable? | MRI compatibility | Notes |
|---|---|---|---|---|
| Delta valve | 24053 24048 42822 42823 42824 92822 92823 92824 24147 42812 42813 42814 92812 92813 92814 27219-1 27219-5 27219-2 27224-1 27224-2 27224-4 27224-5 |
No | MR safe | A radiopaque code on the valves indicates valve performance levels and allows X-ray identification of the performance characteristics of the devices: The code corresponds to Performance Level 1, Performance Level 1.5, and Performance Level 2. The use of the distal catheter results in resistance to flow. The maximum additional resistance to flow is 2 cm H2O at a flow rate of 20 mL/hour. |
| Delta burr hole valve | 42830 42832 42833 42834 42840 42842 42843 42844 92832 92833 92834 92842 92843 92844 |
No | MR safe | |
| Delta shunts | 46822 46823 46824 24039-1 24039-5 24039-2 46812 46813 46814 24133-1 24133-2 24133-4 96822 96823 96824 96812 96813 96814 24028-1 24028-5 24028-2 24027-1 24027-5 24027-2 25121-1 25121-5 25121-2 46832 46833 46834 24013-1 24013-5 24013-2 25014-1 25014-5 25014-2 |
No | MR safe | |
| CSF-flow control valves | Standard medium 42104 Contoured regular 23093 42322 42324 42326 92322 92324 92326 Contoured small 27102 42312 42314 42316 92312 92314 92316 27862M Ultra small 42410 42412 42414 Button 24003 LL 24003 L 24003 M 27167 L 27167 M Burr hole 42532 42534 42536 42542 42544 42546 |
No | MR safe | Includes: contoured regular contoured small ultra small button burr hole |
| CSF-flow control shunt assemblies, kits and unitized shunt kits | 46642 46644 46646 9046 B-L 9046 B-M 9046 B-H 46622 46624 46626 9009 B-L 9009 B-M 9009 B-H 22017 B-LL 22017 B-L 22017 B-M 46012 46014 46016 27643M 27553 M 27553 L 27553 H |
No | MR safe | |
| CSF-unitized shunt | 46022 46024 46026 46220 46222 46224 46240 46242 46244 |
No | MR safe | |
| CSF-snap shunt assemblies | 46560 46562 46564 46540 46542 46544 |
No | MR safe |
Reservoirs, ports, and shunt accessories: MR safe
Other hydrocephalus therapy products, such as reservoirs, ports, and implantable accessories including fixation tabs and catheter connectors, are all considered MR safe as they do not contain any metal materials, with only one exception: the stainless steel straight catheter connector, model number 25027.
Special attention should be taken if the surgeon chooses to use the stainless steel straight catheter connector, since this product is MR conditional according to ASTM F2503. Patients with the stainless steel catheter connector implants can safely undergo MRI under an MR system of 1.5 or 3.0 tesla static magnetic field, and a maximum spatial gradient magnetic field of 3000 gauss/cm.
| Product series | Model numbers | Adjustable? | MRI compatibility | Notes |
|---|---|---|---|---|
| CSF ventricular reservoirs | CSF-ventricular reservoir 44100 44101 20038A 20038B 20038C 20038D 9013C 9013A 9013B 9013F 9042D 9042A 9042B 9042C 22039 9053 24084 21029 20028 44102 44103 9019 44104 44105 44108 44111 44113 21000A 21000B CSF-small reservoir 24106A 24106B 24106C 24106D 24106E 24106F 24106G 23038A 23038B 23038C 23038D 23038E 22104 22101E 22101C 22101A 22101B 22101D CSF-ventriculostomy reservoir 44210 44200 CSF-ventriculostomy reservoir kit 44201 44211 CSF-snap assembly ventriculostomy reservoir kit 22050B CSF-snap assembly ventriculostomy reservoir base 27106 CSF-snap assembly ventriculostomy reservoir dome 24085 |
No |
MR safe | |
| Catheters | Peritoneal catheter 43522 43551 25024 22014 23092 23047 22013 21004 43209* 9007 L* 9007 M* 9007 H* 22002 L* 22002 M* 22002 H* 43103* 43111* 25104* 24148* 24010* 93092 Peritoneal catheter, small lumen 43555 Peritoneal catheter with BioGlide 93522 Cardiac catheter 43418 Ventricular catheter 41101 41207 9025 41701 27771 41103 41115 91503 27251 99102 27240 (BioGlide/barium impregnated) 27165 27211 27600 (Innervision tip) 27065 A (Innervision tip) 27065 B (Innervision tip) 27065 C (Innervision tip) 27065 D (Innervision tip) 27065 E (Innervision tip) 27065 F (Innervision tip) 27065 G (Innervision tip) 27065 H (Innervision tip) 27298 (Innervision tip) 41308 91101 24154 20046 5005 A 5005 B 5005 C 5005 E 5005 F 5005 G 5005 H 5005 I 41404 41405 41406 41407 41408 41409 Opus ventricular catheter 41501 41503 |
MR safe | *Cardiac use as well | |
| Ares antibiotic-impregnated catheter kit | 95001 | MR safe | ||
| CSF-snap shunt ventricular catheter kit | 24094 | MR safe | ||
| Lumbar catheter kit | 44405 44406 |
MR safe | ||
| CSF-lumboperitoneal catheter system |
|
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| CSF-lumboperitoneal K-tube | 23069 | MR safe | ||
| Ventriculostomy reservoir assembly | 27051 | MR safe | ||
| CSF-ventricular port | 44000 44010 |
MR safe | ||
| Catheter connector | 21066 (lumboperitoneal) 22063 (stepdown) 45104 (right angle) 45105 (3-way) 20033 (3-way, all male connectors) |
MR safe | ||
| Fixation tab | 25077 8023B |
MR safe | ||
| Right angle clip | 3008B | MR safe |